Volume 53 (2022)
Volume 52 (2021)
Volume 51 (2020)
Volume 50 (2019)
Volume 49 (2018)
Volume 48 (2017)
Volume 47 (2016)
Volume 46 (2015)
Volume 45 (2014)
Volume 44 (2013)
Volume 43 (2012)
Volume 42 (2011)
Volume 40 (2009)
Volume 39 (2009)
An Estimation of the Lactation Curve Parameters through Incomplete Gamma Function and a Determination of the Genetic Relationship between these Parameters and udder Traits, in Holstein Population of Iran

MohammadReza BakhtiariZadeh; Mohamad Moradi ShahrBabak

Volume 41, Issue 1 , May 2010

Abstract
  The objective of the present study was to estimate the lactation curve parameters through incomplete gamma function and to genetically evaluate the relationship of these parameters and udder traits in Holstein population of Iran. Two data sets' including 117583 [(for lactation curve parameters) and 7351 ...  Read More

Effect of Using Nutrient Equivalency of Phytase on Broiler Chicks’ Performance

Mojtaba Zaghari; Sareh Bour Bour; Mansour Rezaei; Asadolah Teymoori Yansari; Mohamad Riahi

Volume 41, Issue 1 , May 2010

Abstract
  An experiment was conducted using 640 day-old sexed commercial broiler chicks (Ross 308 strain) from 10 to 49 days of age. The experimental design was a completely randomized factorial one. The experimental units (pens) contained 20 chicks each and were allotted at random to 4 dietary treatments × two ...  Read More

A Determination of the Effects of Chemical Treatment of Two Barley Cultivars on Ruminal Dry Matter and Starch Disappearance and on CNCPS Carbohydrate Fraction Characteristics

Mohsen Samiee Zafarghandi; Taghi Ghoorchi; Mojtaba Ahani Azari

Volume 41, Issue 1 , May 2010

Abstract
  The objective of this study was to determine the effects of hulled and hull-less barley grains’ chemical treatment on disappearance of dry matter (DM), starch and CNCPS carbohydrate fractions. For barley grain treatment, NaOH, formaldehyde and urea were used at 35, 4 and 35 gr/kg DM respectively. Three ...  Read More

Effect of Zinc, Copper and Chlortetracycline Supplementation on Fat Thickness and Longissimus muscle in Young Holstein Bulls

Hadi Fagari Nobijari; Hamid Amanlou; Mehdi Dehghan Banadaki; Seyed Hosein Hoseini Sabeghi; Khosro Ghazvinian

Volume 41, Issue 1 , May 2010

Abstract
  Three hundred eighteen young Holstein bulls (initial BW = 375 ± 17.5 kg) were randomly allotted to one of six treatments in a completely randomized design for 56 d the treatments of which consisted of 1) the basal diet (control); 2) basal diet plus 30 mg of Cu/kg of DM as CuSO4; 3) basal diet plus 150 ...  Read More

Effects of Phytase Enzyme (Natuphos) and Saccharomyces cervisiae (Biosof) Supplementation on Performance and Blood Calcium Plus Phosphorous of Broiler Chicks

Mahmoud Haghighian Roudsari; Mohamad Roustaei Alimehr; Seyed Meghdad Taheri Tari; Seyed Abdolhosein Abolghasemi; Seyed Ali Asghar Sefidgar

Volume 41, Issue 1 , May 2010

Abstract
  To study the possible use of phytase and yeast (Saccharomyces cervisiae) in corn-soy bean meal base diet with different levels of available phosphorous in Arbor Acers broiler chicks, an experiment was conducted with 264 day old chicks of an average weight of 44.6 grams each. A completely randomized design ...  Read More

The Effect of Multi Enzyme Supplementation to Tomato Pomace, as Based on Corn-Soybean Meal Diets, on Performance and Carcass Traits in Broiler Chicks

Alireza Safamehr; Mohamad Bahaodin Shams Borhan; Mohamad Hosein Shahir

Volume 41, Issue 1 , May 2010

Abstract
  This experiment was carried out to study effect of supplementary multi enzyme (0, 4 gr per 100 kg of diet) to corn-soybean meal based diets with different levels of Tomato Pomace (TP, 0, 2, 4, 6 and 8 %, respectively) on chick performance and carcass traits. Four hundred and eighty 480 day-old chicks ...  Read More

The Effects of GnRH Injection on Follicular Wave Emergence in Cows Suffering from Cystic Ovaries

Eisa Dirandeh; Hamid Kohram; Ahmad Zare Shahneh

Volume 41, Issue 1 , May 2010

Abstract
  The effect of Gonadotropin Releasing Hormone (GnRH) on follicular wave emergence in cows with cystic ovaries was investigated. The estrous cycles of 10 cows were synchronized with 2 im injections of prostaglandin F2? given 11 days apart. The cows were randomly assigned to 1 of 3 treatments. Control cows ...  Read More

A Comparison of Different Functions for the Description of Lactation Curve in Different Periods of Lactation of Holstein Cows using Test Day Records

Azadeh Boustan; Mohamad Moradi ShahrBabak; Ardeshir Nejati Javaromi

Volume 41, Issue 1 , May 2010

Abstract
  Test day milk records of a Holstein dairy farm collected during years 2004 to 2006 on 142 cows in the 1st lactation vs. 140 cows in the 2nd lactation were used in this research. There were real milk yields of cows available in each part of lactation in this farm making it possible to compare functions ...  Read More

An Analysis of Principal Areas of Applying Information Technology (IT) In Dairy Cattle Farms Management (Case Study: Western Tehran Province)

Zahra Gharoun; Hosein Shabanali Fami; Khalil Kalantari

Volume 41, Issue 1 , May 2010

Abstract
  The purpose of this descriptive– survey research was to identify areas of applying Information Technology in dairy cattle farm management in Western Tehran Province. The statistical population of the study consisted of 284 dairy cattle farmers, out of whom 82 dairy cattle farmers were selected as study ...  Read More

Acid-Base Balance in Laying Hens and Its Relationship with Diet Electrolytes at Cyclic Heat Stress

Lotfolah Bornaei; AbdolHosein Samie; HamidReza Rahmani; Javad PourReza

Volume 41, Issue 1 , May 2010

Abstract
  This experiment was conducted to determine the effects of different levels of anion-cation (67, 117, 167, 217, 267, 317, 367, 417 mEq/kg diet and drinking water) on eggshell quality as well as performance in laying hens at cyclic heat stresses (19-36?C). A total of one hundered and sixty white leghorn ...  Read More